AIR SEPARATING FACILITY AND ITS LIQUEFIED NATURAL GAS UTILIZING METHOD

摘要

PROBLEM TO BE SOLVED: To suppress cost increase in an air separating facility by efficiently utilizing night electric power. SOLUTION: The air liquefying section 20a of the air separating facility effectively utilizes the night electric power for a compressor that consumes a large quantity of electric energy by only operating the compressor at the nighttime. The liquid air produced by means of the section 20a is stored in a liquid air tank 24. The air separating section 20b of the facility is continuously operated day and night and produces a product by utilizing the liquid air stored in the tank 24 at the daytime. Since the capacity of the section 20b can be reduced, cost increase in the air separating facility can be suppressed.